(p-Phenylenebis(oxy-2-butynylene))bis(trimethylammonium diiodide) 1,4-Bis(4-dimethylamino-2-butynyloxy)benzene diiodomethylate 17124-34-4 2-Butyn-1-aminium, 4,4'-(1,4-phenylenebis(oxy))bis(N,N,N-trimethyl-, diiodide Ammonium, (p-phenylenebis(oxy-2-butynylene))bis(trimethyl-, diiodide